Air Quality
Excellent
No health implications.
PM2.5
PM10
O3
CO
SO2
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
20 Jul
Tue
21 Jul
Wed
22 Jul
Thu
23 Jul
Real-time AQI (Monitoring Station in Nantou)
南投
167
PM2.5
15
PM10
73
O3
0.1
CO
3
SO2
4
NO2
竹山
174
PM2.5
13
PM10
71
O3
0.1
CO
4
SO2
2
NO2
埔里
133
PM2.5
8
PM10
52
O3
0.0
CO
3
SO2
0
NO2
Air quality in the last 12 months (Nantou)
|
2026/06
|
36
|
42
|
39
|
30
|
34
|
43
|
28
|
30
|
32
|
34
|
39
|
35
|
35
|
24
|
21
|
23
|
21
|
17
|
20
|
25
|
37
|
33
|
33
|
37
|
26
|
26
|
31
|
33
|
32
|
20
|
|
|
2026/05
|
42
|
45
|
38
|
33
|
33
|
34
|
32
|
38
|
34
|
32
|
35
|
34
|
28
|
26
|
28
|
33
|
36
|
32
|
34
|
36
|
38
|
46
|
40
|
38
|
40
|
39
|
40
|
31
|
45
|
50
|
45
|
|
2026/04
|
33
|
38
|
38
|
32
|
37
|
32
|
39
|
45
|
47
|
37
|
30
|
26
|
38
|
27
|
27
|
33
|
39
|
36
|
36
|
39
|
40
|
42
|
35
|
27
|
38
|
43
|
42
|
45
|
30
|
28
|
|
|
2026/03
|
34
|
46
|
27
|
34
|
29
|
41
|
48
|
35
|
39
|
43
|
40
|
44
|
58
|
44
|
45
|
33
|
39
|
48
|
29
|
40
|
37
|
38
|
32
|
30
|
40
|
35
|
41
|
38
|
51
|
41
|
41
|
|
2026/02
|
20
|
38
|
50
|
33
|
36
|
43
|
27
|
46
|
41
|
37
|
45
|
56
|
48
|
51
|
33
|
38
|
34
|
47
|
52
|
71
|
57
|
67
|
98
|
72
|
31
|
47
|
54
|
27
|
|||
|
2026/01
|
22
|
29
|
40
|
30
|
49
|
36
|
42
|
48
|
56
|
56
|
63
|
58
|
59
|
48
|
45
|
50
|
50
|
20
|
33
|
30
|
44
|
52
|
43
|
43
|
39
|
32
|
23
|
29
|
35
|
37
|
16
|
|
2025/12
|
43
|
42
|
48
|
37
|
31
|
31
|
33
|
43
|
40
|
29
|
37
|
49
|
50
|
41
|
51
|
42
|
49
|
55
|
50
|
48
|
67
|
28
|
33
|
50
|
23
|
34
|
24
|
28
|
31
|
42
|
35
|
|
2025/11
|
31
|
53
|
44
|
18
|
20
|
24
|
37
|
35
|
35
|
42
|
22
|
9
|
13
|
34
|
43
|
32
|
34
|
28
|
30
|
42
|
46
|
50
|
44
|
42
|
52
|
76
|
58
|
103
|
83
|
55
|
|
|
2025/10
|
22
|
15
|
18
|
22
|
26
|
31
|
23
|
25
|
23
|
24
|
23
|
21
|
19
|
34
|
18
|
29
|
31
|
35
|
29
|
30
|
21
|
25
|
30
|
32
|
37
|
48
|
44
|
26
|
26
|
34
|
38
|
|
2025/09
|
26
|
36
|
32
|
34
|
23
|
22
|
18
|
22
|
20
|
29
|
25
|
27
|
35
|
29
|
24
|
25
|
22
|
23
|
19
|
22
|
25
|
26
|
32
|
31
|
23
|
18
|
19
|
20
|
25
|
25
|
|
|
2025/08
|
34
|
31
|
34
|
18
|
19
|
31
|
41
|
46
|
28
|
20
|
23
|
24
|
31
|
29
|
21
|
23
|
24
|
16
|
22
|
32
|
33
|
32
|
25
|
23
|
19
|
16
|
15
|
17
|
18
|
18
|
17
|
|
2025/07
|
19
|
22
|
26
|
27
|
17
|
20
|
28
|
44
|
34
|
16
|
12
|
28
|
40
|
43
|
35
|
38
|
34
|
24
|
32
|
33
|
22
|
19
|
21
|
24
|
22
|
34
|
35
|
31
|
20
|
40
|
46
|
|
1
|
2
|
3
|
4
|
5
|
6
|
7
|
8
|
9
|
10
|
11
|
12
|
13
|
14
|
15
|
16
|
17
|
18
|
19
|
20
|
21
|
22
|
23
|
24
|
25
|
26
|
27
|
28
|
29
|
30
|
31
|
- Excellent
- Good
- Lightly
- Moderately
- Heavily
- Severely
*: primary pollution